EP 4209569 A1 20230712 - METHOD FOR PRODUCING PITCH
Title (en)
METHOD FOR PRODUCING PITCH
Title (de)
VERFAHREN ZUR HERSTELLUNG VON PECH
Title (fr)
PROCÉDÉ DE PRODUCTION DE BRAI
Publication
Application
Priority
- JP 2020148261 A 20200903
- JP 2020148306 A 20200903
- JP 2021028474 W 20210730
Abstract (en)
The present invention provides pitch for manufacturing carbon materials, the pitch having a high fixed carbon content and low viscosity and being obtained by using a petroleum-based heavy oil as a material. Pitch is produced by a method comprising: a step for preparing a material oil containing a petroleum-based heavy oil and an indene compound represented by general formula (1) (step 1); a step for thermally treating the material oil (step 2); and a step for distilling the thermally treated product and obtaining pitch as a high-boiling-point component (step 3). (In general formula (1), Ar represents an aromatic ring having 1 to 3 rings; R<sub>1</sub> to R<sub>4</sub> each independently represent a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or an alkenyl group having 2 to 3 carbon atoms; R<sub>5</sub> represents an alkyl group having 1 to 3 carbon atoms or an alkenyl group having 2 to 3 carbon atoms; m represents an integer from 1 to 3; n represents an integer from 0 to 4 (when the number of rings of Ar is 1), an integer from 0 to 6 (when the number of rings of Ar is 2), or an integer from 0 to 8 (when the number of rings of Ar is 3); adjacent R<sub>5</sub>s may be bonded together to form an alicyclic ring; and a hydrogen atom is bonded to Ar which is not substituted by R<sub>5</sub>.)
IPC 8 full level
CPC (source: EP US)
C01B 32/05 (2017.08 - EP); C01B 32/205 (2017.08 - EP); C04B 35/522 (2013.01 - EP); C04B 35/532 (2013.01 - EP); C04B 35/63496 (2013.01 - EP); C10C 3/002 (2013.01 - EP US); C10C 3/06 (2013.01 - EP US); C04B 2235/425 (2013.01 - EP); C04B 2235/5276 (2013.01 - EP); C04B 2235/602 (2013.01 - EP); C04B 2235/616 (2013.01 - EP); Y02E 60/10 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4209569 A1 20230712; CN 116096839 A 20230509; JP 7468670 B2 20240416; JP WO2022049953 A1 20220310; US 2023303933 A1 20230928; WO 2022049953 A1 20220310
DOCDB simple family (application)
EP 21864011 A 20210730; CN 202180053449 A 20210730; JP 2021028474 W 20210730; JP 2022546169 A 20210730; US 202118023480 A 20210730